From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

This historic steamboat is scuttled just a few hundred feet from where it was built over a hundred years ago.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.

This incredible Chinese theme park may be the largest bootleg in history.

Have fun at the world's first Buddhist waterslide park.

Painstakingly built dioramas sit unnoticed in a Boston office building.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.